Lease-forming mechanism.



G. F. SLlPP.

LEASE FORMING MECHANISM.

PPLICATION FILED 0 A EC. 19. 1912. 1,147,654.. Patented July 20, 1915.

ji -f 1 Q4 INVENTE'R nrr SAIS 1 non. I

GEORGE F. SLIPP, or LOWELL, ivinssnonuslnflrrs ass enoit o '1. c. n vrwis'rnn COMPANY, or LOWELL, MASSACHUSETTS, A CORPORATION o vrassAoHUsETrs.

LEASE-FQRMING MECHANISM.-

Patented July '20., 1915.

Application filed December 19, 1912. Serial no. 737,691.

To all wit-0m 2'2 may concern Be it known that I, GEORGE F. SLIPP, of Lowell, in the county of Middlesex and the Commonwealth of Massachusetts, have invented certain new and useful Improvements in Lease-Forming Mechanism, of which the following is a specification.

This invention relates to devices or means such as employed in warping-machines and the like for forming a lease in the warpthreads.

The objects of the invention are to simplify and lessen the cost of construction of the lease-forming means or devices that are employed in warping machines and the like.

The invention consists in the improvements in lease-forming means or devices hereinafter described and particularly defined in the claims.

In the drawing which illustrates my invention in the preferred form,

Figure 1 is a partial side elevation, looking across the warps, of a portion ofa warping machine having an embodiment of the invention applied thereto. Fig. 2 is an end-elevation of parts shown in Fig. 1, with the stand 2 removed. Fig. 3 is a sectional elevation taken at the line 33 of Fig. 4. Fig. 4 is a plan of certain parts shown in Fig. 1. Fig. 5 is a cross-section of a modification of the shed-forming means. Figs. 6 and7 are views of a part of a needle-stick, one view taken at right-angles with the other. Fig. 8 is a cross-section of the needle-stick.

In the drawing, 1 is part of the side-framing of the warping-machine, 2 is a stand for supporting the leasing comb or reed, and 8 is a leasing comb or reed of well-known construction.

e is a light wooden rod having its width greater than its thickness, extending transversely across between the warp-threads and dividing them into two series or layers 5 and 6, the said rod being adapted to rest at its ends upon rests or supports in connection with the side-frames. Each end of the rod is furnished with a trunnion 7, each trunnion entering a vertical slot 8 in a support 9. The walls of the said slot limit the horizontal movement of the rod lengthwise of the threads but the vertical movement of the rod is permitted. Endwise movement of the rod is limited by contact of the shoulders of the rod adjacent the trunnions with the inner surfaces of the slotted upright portions of the supports. The supports are formed with rests 13 adjacent the saidslotted portions, upon which the end portions of the rod lie when not lifted therefrom by the threads or otherwise. The. support 9 has stops 10 and 11 for limiting the extent of the rotation of the rod 4:. In its illustrated form, the support 9 is integral with the siderframe 1. It is recessed at 12 to permit unobstructed rotation of the rod4 asfar' as permitted by the stops. It is recessed at 13 to accommodate oneedge of the rod so as to permit the rod to take the horizontal full-line positionof Fig. 4,. but the stop 10 limits its right-handed rotation as the full lines show and the stop 11 limits its lefthanded 'rotation'a's the dotted lines show. The rod normally occupies the full-line posi-' tion thereof shown in Fig. 3. Before the operations by which a lease is formed, the parts and threads occupy the positions in which they are represented in Fig. 1 in full lines. For the first shed of the lease, the

leasing comb or reed 3 is raisedas indicated in dotted lines in Fig.v 1, raising with it the threads 5 at the left of'rod 4 so as to carry such threads above the threads 6, forming a shed for the reception of a lease-thread.- The lease-thread having been introduced at the left of they leasing-reed or comb, the leasing-reed or comb is lowered to its full-line position. The other shed for the lease is formed by turningthe 1 rod 4 from the fullline position tothe dotted-linepositionof Fig. 3, carrying the upper series of threads 6 up to their dotted-line position 6, thereby I lifting them sufficiently above the threads 5 to permit a lease-thread to be passed through between threads 5 6 atthe left of the leasing-reed or comb. The rod 4: can easily be turned to the limit in either direction by the thumb and finger of one hand applied to the rod between the support 9 and the threads. A modification of the form of the cross-section of the rod is shown in Fig. 5 and is within my invention. I

Figs. 6 and 7 show a portion of a needlestick that is adapted for use in passing the lease-threadthrough a shed which has opened but slightly as compared with the shed-openings which are usual. Therefore, the shedopening may be comparatively slight. The 1 said needle-stick is made of strong light wood. It is made thin, in the direction of the opening of the shed when it is therein, to allow it to pass freely through a shed of unusually slight opening, and it has a forward terminal portion that tapers to a forward end that is still thinner in the same direction. Its width, the other dimension of its cross-section, is greater. It has an eye 14: through the stick in the direction of the smaller dimension of its cross-section for carrying the lease-thread, and both ends of the thread are doubled backward from the eye. When the forward terminal portion of the needle has been inserted into the open shed, the untapered portion rests upon the lower layer of the threads. It is guided by the said layer in its passage through the shed and the tapering shape of the forward terminal portion prevents the thin forward end from colliding with any of the threads. One of the double-back ends of the thread is quite short, while the other is longer than the width of the warp. When a sufficient length of the thread has been passed into the shed, the longer end is held back while the stick is pushed on until the eye has passed beyond the shorter end and the lease-thread has been laid in the shed free of the needle-stick.

I claim:

1. In a lease-forming mechanism, a revoluble shed-forming means having its width greater than its thickness, the said means eX- tending transversely across between warpthreads and dividing them into two series or layers, and means for retaining the shedforming means in an angular position separating one series from the other series by the said width for forming one shed of a lease.

2. Ihe combination with a leasing comb or reed adapted by its engagement with a series of warp-threads to form one shed of a lease, of a shed-forming device having its width greater than its thickness, the said device extending transversely across between the warp-threads and dividing them into two series or layers, and means for retaining the device in position to separate one Copies of this patent may be obtained for five cents series from the other series by the width of the device, for forming the other shed of the lease.

3. In a lease-forming mechanism, in combination, a leasing comb or reed, a shedforming device having its width greater than its thickness, the said device extending transversely across between the threads and dividing them into two series or layers, and means for permitting a partial rotation of the device to separate one series of threads from the other series by the width of the device and for preventing a substantial movement of the device lengthwise of the threads.

4. In a lease-forming mechanism, in combination, a wooden rod having its width greater than its thickness, the said rod extending transversely across between the threads and dividing them into two series or layers, and a stationary support for retaining the rod in angular position to separate one series from the other series by the width of the rodin forming the shed of a lease.

5. In a lease-forming mechanism, in combination a shedforming means, a trunnion having a rest for the said means, a slotted guide for the reception of the trunnion permitting the trunnion to move in the direction of opening of the shed, and a stop for limiting the extent of the rotation of the said means.

6. In a lease-forming mechanism, the combination of a shed-forming means having a trunnion with a rest for such means, a slotted guide for the reception of the trunnion permititng the trunnion to move in the direction of opening of the shed, and stops for limiting the extent of the rotation of the said means in opposite direction respectively.

GEORGE F. SLIPP.

Witnesses:

Bnssrn E. RowELL, CHANNING WVHITAKER.

each, by addressing the Commissioner of Patents,

Washington, D. C.

warp- It is hereby certified that in Letters Patent No. 1,147,654, granted July 20, 1915, upon the application of George Slipp, of Lowell, Massachusetts, for an improvement in Lease-Forming Mechanism, errors appear in the printed specication requiring correction as follows: Page 2, line 74, claim 5, after the Word means strike out the comma and insert the word having; same page and claim,

line 75, strike out the Word having and insert a comma; same page, line 88, claim 6, for the Word direction read directions; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 19th day of October, A. D., 1915.

SEAL R. F. WHITEHEAD,

Acting Commissioner of Patents. 

